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"Calidris arenaria. Sanderling. Ruddy "Plover". Adult in summer: Entire upper parts and neck all round variegated with black, light ashy and bright reddish; on the back and scapulars each feather having a central black field, and being broadly margined and tipped with ashy or reddish. Under parts white, immaculate. Outer webs an tips of primaries deep brownish-black, inner light ashy. A white spot at base of inner primaries. Secondaries mostly pure white; the outer vanes and part of inner on the latter half dusky. Greater coverts dusky, broadly tipped and narrowly edged with pure white. Rump, upper tail-coverts and central tail-feathers dusky, tipped and narrowly edged with ashy-white; lateral tail=-feathers very light ash, nearly white. Bill and feet black." Elliot Coues, 1884

Sanderling

"Calidris arenaria. Sanderling. Ruddy "Plover". Adult in summer: Entire upper parts and neck all round…